The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jan. 07, 2020
Filed:
Sep. 12, 2017
Henkel Ip & Holding Gmbh, Duesseldorf, DE;
Laxmisha Sridhar, Monmouth Junction, NJ (US);
Eric N. Silverberg, Summit, NJ (US);
Sean M. Burdzy, Hamden, CT (US);
Andrew D. Messana, Newington, CT (US);
John G. Woods, Farmington, CT (US);
Bruce Stevens, Manville, NJ (US);
Henkel IP & Holding GmbH, Duesseldorf, DE;
Abstract
Disclosed are photoinitiators that are ultra violet (UV) reactive. The photoinitiators can be polymerized into polymeric backbones for use in UV curable hot melt pressure sensitive adhesives. The preferred polymeric backbones are acrylic-based polymers. The photoinitiators are very UVC sensitive and have excellent hot melt viscosity stability that is many fold higher than existing photoinitiators. The subject photoinitiators feature aryl ketones linked through an ether linkage to a variety of connector sequences that allow for polymerization of the photoinitiators.